/*common Class*/
.flex {
    display: flex;
}

.flex-end {
    justify-content: flex-end;
}

.flex-y {
    display: flex;
    flex-direction: column;
}

.flex-x-center {
    display: flex;
    justify-content: center;
}

.flex-x-end {
    justify-content: flex-end;
}

.flex-y-center {
    display: flex;
    align-items: center;
}

.flex-y-end {
    align-items: flex-end;
}

.flex-xy-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-1 {
    flex: 1;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-sp-bt {
    justify-content: space-between;
}

.flex-sp-ar {
    justify-content: space-around;
}

.flex-sp-el {
    justify-content: space-evenly;
}

.el-1 {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.el-2 {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.el-3 {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

/* reset */
* {
    box-sizing: border-box;
}

html,
body,
h1,
h2,
ul {
    margin: 0;
    padding: 0;
}

li {
    list-style-type: none;
}

pre {
    padding: 0;
    font-family: inherit;
    margin: 0;
}